I just replaced the engine in my friends 2008 cobalt. Got everything all hooked up all fluids put in. New battery, hoses, belts. Went to start it and nothing. Has plenty of power but in run when trying to start it all lights go out and nothing. Will not turn over at all. Rechecked all the plugs and wires and everything is hooked up right. Do these vehicles have some sort of security system that makes them not start? Any other information would greatly be appreciated.


Asked by Apr 08, 2015 at 08:44 PM about the 2008 Chevrolet Cobalt

Question type: Maintenance & Repair

3 Answers


Check the starter to start with,Then you may need to reprogram the ECM,

2 out of 2 people think this is helpful.

Sounds like a bad battery connection since the lights all go out. Check that all the ground wires/straps are hooked up and the connections are all clean and tight. HTH. -Jim


Agree with Js. I think its something simple like a loose or dirty connection at the battery or starter end of things. I can't think of a reason why the ECM would need reprogramming. I think they're pretty bullet proof although I could be wrong.

Your Answer

Add photo

Related Questions


Looking for a Used Cobalt in your area?

CarGurus has 5,560 nationwide Cobalt listings starting at $950.


Search Chevrolet Cobalt Questions

Chevrolet Cobalt Experts

#1 lightGear
Reputation 1,070
#2 FordNut
Reputation 1,000
#3 dandyoun
Reputation 890
View All

Related Models For Sale

Used Honda Civic"
1,191 Great Deals out of 58,279 listings starting at $1,300
Used Chevrolet Malibu"
1,190 Great Deals out of 72,676 listings starting at $695
Used Ford Focus"
1,227 Great Deals out of 57,140 listings starting at $1,495
Used Chevrolet Impala"
981 Great Deals out of 35,806 listings starting at $700
Used Ford Mustang"
743 Great Deals out of 41,405 listings starting at $900
Used Honda Accord"
1,338 Great Deals out of 77,942 listings starting at $1,395
Used Toyota Corolla"
1,460 Great Deals out of 67,063 listings starting at $1,295
Used Nissan Altima"
1,484 Great Deals out of 87,812 listings starting at $1,195
Used Toyota Camry"
1,669 Great Deals out of 98,345 listings starting at $895
Used Ford Fusion"
1,472 Great Deals out of 79,221 listings starting at $1,450
Used Honda Civic Coupe"
355 Great Deals out of 16,316 listings starting at $799

Used Cars For Sale

2010 Chevrolet Cobalt For Sale
34 Great Deals out of 973 listings starting at $2,900
2009 Chevrolet Cobalt For Sale
33 Great Deals out of 927 listings starting at $995
2008 Chevrolet Cobalt For Sale
14 Great Deals out of 974 listings starting at $1,800
2007 Chevrolet Cobalt For Sale
14 Great Deals out of 1,077 listings starting at $1,970
2006 Chevrolet Cobalt For Sale
11 Great Deals out of 1,082 listings starting at $950